springboot jar项目通过shell快捷迭代线上版本

骑猪看日落 2022-04-23 03:26 6阅读 0赞

##### 简介： #####

项目是单机版的，但是因为在更新的时候会停止掉项目，致使前端报502，很不好的用户体验，虽然是短短的几十秒而已，所以通过nginx做了负载均衡，通过负载均衡做切换，但是。。。切换的时候需要修改配置，启动，修改配置，启动。。。等一些列的重复麻烦的动作，所以写了一个shell用来全自动更新，命令从之前的十几二十多个减少到 **2个**

#### 项目结构 ####

-项目
    	-shell.sh
    	-ss-1.0-SNAPSHOT.jar
    	-main
    		-start.sh
    		-shutdown.sh
    		-logs
    		-ss-1.0-SNAPSHOT.jar
    	-update
    		-start.sh
    		-shutdown.sh
    		-logs
    		-ss-1.0-SNAPSHOT.jar

#### shell代码： ####

# 操作 main update
    # 只有两个，一个是长期跑的jar，一个是用来升级的jar
    action="${1}"
    if [ "$action" != "main" -a "$action" != "update" ]; then
    	echo "未知的操作!"
    	exit 1
    fi
    
    # 配置nginx 主目录, 配置文件地址
    nginx_path="/data/nginx/"
    nginx_conf_path="${nginx_path}/conf/vhost/h.https.conf"
    
    # 配置 主。备端口、jar地址、jar名字
    main_port="8888"
    update_port="8889"
    main_path="/data/product/ss/main/"
    update_path="/data/product/ss/update/"
    jar_name="ss-1.0-SNAPSHOT.jar"
    
    # 要启动的端口
    start_port=""
    shutdown_port=""
    project_path=""
    shutdown_path=""
    
    check(){ 
    
    	if [ ! -e "${nginx_conf_path}" ]; then
    		echo "nginx 配置文件不存在[${nginx_conf_path}]"
    		exit 1
    	fi
    
    	if [ ! -e "./${jar_name}" ]; then
    		echo "当前目录项目${jar_name}不存在"
    		exit 1
    	fi
    
    	if [ "$action" = "main" ]; then
    		c=`cat ${ nginx_conf_path} | grep "\sserver\s127\.0\.0\.1\:${update_port};" | wc -l`
    		line=${c}
    		if [ "$line" -ne "1" ]; then
    			echo "配置文件错误"
    			exit 1
    		fi
    		c=`cat ${ nginx_conf_path} | grep "#server\s127\.0\.0\.1\:${main_port};" | wc -l`
    		line=${c}
    		if [ "$line" -ne "1" ]; then
    			echo "配置文件错误"
    			exit 1
    		fi
    	elif [ "$action" = "update" ]; then
    		c=`cat ${ nginx_conf_path} | grep "#server\s127\.0\.0\.1\:${update_port};" | wc -l`
    		line=${c}
    		if [ "$line" -ne "1" ]; then
    			echo "配置文件错误"
    			exit 1
    		fi
    		c=`cat ${ nginx_conf_path} | grep "\sserver\s127\.0\.0\.1\:${main_port};" | wc -l`
    		line=${c}
    		if [ "$line" -ne "1" ]; then
    			echo "配置文件错误"
    			exit 1
    		fi
    	else
    		echo "未知的类型"
    		exit 1
    	fi
    }
    editConf(){ 
    	echo "更改nginx配置"
    	if [ "$action" = "main" ]; then
    		sed -i "s/server 127.0.0.1:${update_port};/#server 127.0.0.1:${update_port};/" ${nginx_conf_path}
    		sed -i "s/#server 127.0.0.1:${main_port};/server 127.0.0.1:${main_port};/" ${nginx_conf_path}
    	elif [ "$action" = "update" ]; then
    		sed -i "s/#server 127.0.0.1:${update_port};/server 127.0.0.1:${update_port};/" ${nginx_conf_path}
    		sed -i "s/server 127.0.0.1:${main_port};/#server 127.0.0.1:${main_port};/" ${nginx_conf_path}
    	else
    		echo "未知的类型"
    		exit 1
    	fi
    }
    setAttr(){ 
    	echo "设置变量"
    	if [ "$action" = "main" ]; then
    		project_path="${main_path}"
    		start_port="${main_port}"
    		shutdown_port="${update_port}"
    		shutdown_path="${update_path}"
    	elif [ "$action" = "update" ]; then
    		project_path="${update_path}"
    		shutdown_path="${main_path}"
    		start_port="${update_port}"
    		shutdown_port="${main_port}"
    	else
    		echo "err"
    	fi
    }
    
    check
    editConf
    setAttr
    
    echo "复制项目到目标目录"
    \cp ./${jar_name} ./${action}
    echo "进入项目目录>>${project_path}"
    cd ${project_path}
    echo "启动项目"
    ./start.sh
    echo "检测项目状态..."
    scmd=`` count=0 ret="" while [ $count -le "20" ] do count=`expr $count + 1` scmd=`curl -I -X POST -m 3 -o /dev/null -s -w %{ http_code} http://127.0.0.1:${start_port}` ret=${ scmd} if [ $ret == "404" ]; then echo "尝试${count}次检测，启动完成!" break fi echo "[${count}]错误的状态码[$ret],进行尝试..." sleep 3s done if [ $count -ge "20" ]; then echo "项目启动失败，请手动处理!" exit 1 fi echo "重启nginx" cmd=`${nginx_path}/sbin/nginx -s reload` ${ cmd} echo "关闭旧项目${shutdown_path}" scmd=`curl -I -X POST -m 3 -o /dev/null -s -w %{ http_code} http://127.0.0.1:${shutdown_port}`
    ret=${scmd}
    if [ $ret != "404" ]; then
    	echo "项目没有启动"
    else
    	cd ${shutdown_path}
    	./shutdown.sh
    fi

#### 附([start.sh][]、[shutdown.sh][]) ####

# start.sh
    cmd=`/data/jdk1.8/bin/java -Xms700M -Xmx700M -jar ss-1.0-SNAPSHOT.jar --spring.profiles.active\=pro --server.port\=8888 > logs/.log &`
    ${cmd}

# shutdown.sh
    port="8888"
    echo "停止端口[${port}]的springboot程序..."
    cmd=`curl -i -X POST http://127.0.0.1:${ port}/shutdown`
    ret=${cmd}

#### 使用： ####

./shell main   	： 切换到 主项目
    ./shell update	： 临时切换到 升级项目

[start.sh]: http://start.sh
[shutdown.sh]: http://shutdown.sh